[146102] in North American Network Operators' Group
Re: Performance Issues - PTR Records
daemon@ATHENA.MIT.EDU (nanog@namor.ca)
Wed Nov 2 21:00:08 2011
Date: Wed, 02 Nov 2011 19:58:59 -0500
From: J <nanog@namor.ca>
To: nanog@nanog.org
In-Reply-To: <CAJAdsDkGc2CYfa=CDuCDSoFw1xVQ0TKz4B_MAPqBbFgFsyPnRQ@mail.gmail.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
PC wrote:
> What happens if the ISP never defines a name server with their RIR for
> their provider-independent address space? Does ARIN point to somewhere
> which supplies NXDOMAIN? Just a thought -- I don't have a clue.
>
> It is entirely possible they have it pointed to their non-existent or
> broken DNS. Given current best practices, I see no reason not to assign a
> generic x.x.x.x-dynamic.customer.isp.com DNS across their netblock.
I think that returns SERVFAIL somewhere down the line?
Does it make sense to reinforce the behaviour (good and bad terms left for
another time), while looking forward to v6?
